Implemented edit/delete functionality on incidents table

Table now has complete UI for editing and deleting incidents.

Two outstanding issues:

1) I don't know how to delete an object from the incidents collection
2) For some reason, updates to an incident's type don't stick. All
other updates do.
Merge branch 'master' into kevin_branch
made comment more optimistic
Log items can now be deleted
Merge pull request #7 from gregarious/kevin_branch

Implemented edit/delete functionality on incidents table